This is a 32" vizio TV im using as a computer monitor. sometimes itll turn itself off then come back on about 10-20 seconds later. I cant seem to find a pattern of when its doing it, but it seems random. doesnt happen when im watching a video in full screen, or in a game or at least i havent seen it yet, and my xbox360 plugged into the same TV has no issues.

My old TV I had on here never did this with the same exact GPU and HDMI cable. I switched HDMI ports too on my TV and its still the same.

kind of annoying but i cant figure out why...my last monitor was an LG 32" TV. Ive also made sure the connection isnt loose and its tight, though the GPU isnt in there 100% so the HDMI port on the back of my PC isnt perfectly slotted but its never been an issue.

Hey! I actually do shut my PC off nightly or when im away for more than a couple of hours so its been restarted plenty of times since this issue started. this is a brand new TV but I dont recall this happening the first night or two but ever since its been a regular thing. about a week now

it sounds like the HDMI cable is loose on one end. try jiggling it at both ends and see if you can get the monitor to go black. if it's disconnected for a split second it will go black for ~5 secs while it renegotiates.

this can cause a sort of loop as well if the device on one end decides its resolution based on the connection. switching res causes the signal to renegotiate, and the signal renegotiating causes the res to auto-switch, back and forth, back and forth. you'd probably have to have a weird setup for that to happen though.---

Random doesn't make it easy, you have to narrow down the location of the problem. Is the TV turning off or is it just losing the signal and saying 'no source' or something? The fact it works with other devices says the source is at fault, but it could be a fluke with the resolution settings as was said above.

You could swap cables, check for dust/overheating, wait to see if a pattern emerges.

My monitor was doing something similar. My video card needs a mini HDMI adapter and the male part came loose causing those issues especially when the screen was rendering white. I tried reseating it but ended up needing a new cable. I suppose any of the terminals could be the culprit from your gfx card out, to TV in.

My monitor was doing something similar. My video card needs a mini HDMI adapter and the male part came loose causing those issues especially when the screen was rendering white. I tried reseating it but ended up needing a new cable. I suppose any of the terminals could be the culprit from your gfx card out, to TV in.

Exactly this on my end too. My old GTX 580 had a micro HDMI port and an adapter was needed. Problem was, the cable would droop down and after a few years, my screen would start to flicker and/or show red lines across it. I've since updated my card (which has a full HDMI port this time) and haven't had the issue since. Your problem sounds very much like a connection issue inside the card.---

what i could do possibly is switch to integrated graphics and see if it still happens, since i have integrated graphics and only switched to a dedicated gpu a couple years ago when i got a hand me down